This driver only supports a cmd->start_src of TRIG_INT for ai commands. The
cmd->start_arg is trivially validated to be 0. For TRIG_INT source, the
cmd->start_arg is actually the valid trig_num that is passed to the async
(*inttrig) callback.
Refactor the (*inttrig) function so that the cmd->start_arg is used to check
the trig_num instead of the open coded value.
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/cb_pcidas.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c
b/drivers/staging/comedi/drivers/cb_pcidas.c
index 063a7df..5741183 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -1166,7 +1166,7 @@ static int cb_pcidas_ao_inttrig(struct comedi_device *dev,
struct comedi_cmd *cmd = &s->async->cmd;
unsigned long flags;
- if (trig_num != 0)
+ if (trig_num != cmd->start_arg)
return -EINVAL;
/* load up fifo */
--
1.8.5.2
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